Wesley Mitchell, Arthur Burns and Trygve Haavelmo on business cyclesThe two Encyclopaedia of the social sciences (1930–1935 and 1968)

The paper presents a brief reconstruction of the history of the Encyclopaedia of the Social Sciences (1930-1935 and 1968) a 15 volume major editorial enterprise that was accomplished under the direction of Columbia economist E.R.A. Seligman. It then provides an analysis of the main entries that were devoted to business cycle theory, namely those by Wesley C. Mitchell, Arthur Burns and Trygve Haavelmo.